PenFed blimp, deflated, bursts into flames and crashes near U.S. Open at Erin Hills

A PenFed blimp deflated, burst into flames and crashed late Thursday morning near the U.S. Open at Erin Hills.

TOWN of ERIN - Some of the biggest drama at the U.S. Open took place in the sky just east of the course Thursday morning when a blimp advertising for PenFed Credit Union deflated, burst into flames and crashed.

The blimp went down about 11:15 a.m. near Highways 83 and 167. The crash site was about a mile from the Erin Hills golf course where thousands of people gathered for the first morning of competition.

A blimp crashes during the first round of the U.S. Open golf tournament at Erin Hills in Erin.

A blimp crashes during the first round of the U.S. Open golf tournament at Erin Hills in Erin.

Associated Press

The pilot was flown by Flight for Life around noon to be treated for serious injuries, including burns, at Froedtert Hospital. The hospital identified him as Trevor Thompson and said he was in serious condition.

Thompson was coherent and stable enough to talk to officers, officials from the National Transportation Safety Board said at a news conference Thursday night. The NTSB is investigating the crash.

Officers reported that the aircraft had reached an altitude of about 1,000 feet before Thompson decided to land because of high winds. As he was descending, he heard panels rip off the air balloon and blimp hybrid that he was flying. He then turned the engines off, but residual fuel in the engines is what led to the fiery explosion that followed once the aircraft hit the ground.

Thompson was the only occupant of the aircraft, and no one on the ground was injured.

The blimp was operated by AirSign, an aerial advertising firm with operations across the country. The company website says it specializes in banner, blimps and sky writing.

A blimp crashes during the first round of the U.S. Open golf tournament at Erin Hills in Erin, Wis.

A blimp crashes during the first round of the U.S. Open golf tournament at Erin Hills in Erin, Wis.

Associated Press

"It started deflating, and then it started going down," said Bryan Rosine, who noticed the blimp while he was taking a tree down.

"They were trying to give it some throttle and it didn't go up. Then there was a bunch of kabooms and smoke clouds."

Another witness, Tim Guetzke and his 16-year-old son Hunter, an incoming junior at Hartford Union High School, were in the area and watching the blimp.

"The side started deflating," Tim Guetzke said. "One side was going in. As it headed toward the ground, it caught fire."

"It was doing fine for hours," he said. "Hunter could see it. He said, 'Dad, it's deflating. I think it's starting on fire.' When you realize someone is in there it makes you sad."

Golfer Jamie Lovemark said he saw the blimp while on the 5th hole.

"I was teeing off and I looked up and saw it on fire and I felt sick to my stomach," he said. "I had the shakes. I felt terrible for the people inside. I didn't know what was going on. It was a horrible sight."

The blimp landed in a farmer's field near a stand of trees and looked like a large deflated balloon. Videos show flames and explosions after the wreckage hit the ground.

The sign on the blimp advertised PenFed Credit Union, also known as the Pentagon Federal Credit Union. The nation's third-largest credit union with assets of about $22 billion, PenFed serves about 1.5 million people with connections to the military and has branches in 10 states.